vhf通信a卷及参考答案10春本科

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1、2010春航海技术本科《船舶信号与VHF》A卷姓名：成绩：一、单项选择题（每题2分共70分）1.IMOhasdecidedthatallshipsover300TGtmustbefittedwithaNAVTEXreceiver______. A.by01Feb1992B.by01Aug1993 C.between01Feb1992and01Feb1999D.before01Feb19922.GMDSSistoprovide______withreliablecommunication. A.alllargepassen

2、gervessels B.freightersofmorethan300gtincoastalwaters C.allpassengershipsandcargoshipsengagedininternational-voyages D.allpassengershipsandcargoshipsof300gtupwardsinopensea 3.Thecomplyingvesselscantransmitship-to-shoredistressalertsbyatleast______. A.Onemeans,whe

3、thersatelliteorterrestrialtechniques B.Twomeans,whethersatelliteorterrestrialtechniques C.Twoseparateandindependentmeans,eachusingdifferentradiocommunicationservices D.Twomeans,suchasMFDSCandHFDSC 4.Thequalityofthemessagecanbeaffectedby______. A.climateB.sunshine

4、C.humanbeingsD.bothaandb 5.Withinthepolarareasitis______toseeasatelliteingeo-stationaryorbit. A.impossibleB.possibleC.easyD.difficult 6.TheInmarsatsystemisopenforuseby______countriesonanon-discriminatorybasis. A.someB.lotsofC.manyD.all 7.WiththehelpofGMDSS______c

5、anbealertedtoadistressincidentassoonaspossible. A.allshipsinalargeseaareaB.onlytheseaauthoritiesashore C.theSARunitsashoreandatseaD.theportradiosandthecoaststations 8.InareascoveredbyInmarsatHFcanbeusedasan______tosatellitecommunications. A.alternationB.alternate

6、C.alterD.alternative 9.Whenreceivingadistressalert,theSARauthoritiesashoreandtheshipsinthevicinityoftheshipindistresswill______inacoordinatedsearchandrescueoperationwiththeminimumdelay. A.assistB.sendarescuevesselC.searchthedistressareaD.reachthedistresspositiona

7、tonce10.InwhichyearwastheCOSPAS-SARSATsystemestablished? A.1980B.1981C.1979D.198211.Itisquite______foranSESoperatortosendadistressalert. A.easyandexpensiveB.simpleandcertain C.dangerousandstableD.difficultandcompulsory12.AnyshipsfittedwithSEScan______and_______th

8、roughthesatellitesystemwhensendingadistressalert. A.enterthesystem/contactanRCC B.accesstoINMARSAT/establishcontactwithaCES C.haveabsoluteprioritytoenterthesys